Abstract: Provided is a rotor for a rotating electric machine, which enables suppression of a reduction in output of a rotating electric machine. The rotor for a rotating electric machine includes: a rotor core having winding-portion insertion holes and magnet insertion holes; rotor winding portions inserted into the winding-portion insertion holes; and rotor permanent magnets inserted into the magnet insertion holes, wherein each of the rotor winding portions includes: a non-magnet portion; and a rotor winding provided to the non-magnet portion, wherein each of the non-magnet portions is fixed to the rotor core, and wherein the rotor windings are fixed to the rotor core through intermediation of the non-magnet portions.

Abstract: To provide a rotary electric machine which is improved in cooling performance. The rotary electric machine includes a rotor; and a stator which, being disposed opposite the rotor, has a stator core having a plurality of slots therein and a stator winding wound in the plurality of slots, wherein the stator has a plurality of coil ends which are formed protruding from an axial end face of the stator core and between adjacent ones of which is provided a radial clearance passing through from the inner diameter side to the outer diameter side, and wherein the stator includes a bus bar which, being disposed on the inner diameter side of the plurality of coil ends so as to occlude the clearances between the plurality of coil ends, guides a refrigerant, which is supplied from the radial direction of the stator, to the plurality of coil ends.

Abstract: Provided is a segment-core coupled body, including a plurality of segment cores each including a core back and a tooth; and a plurality of coupling portions configured to couple the core backs to one another, wherein the plurality of segment cores and the plurality of coupling portions are each a laminated body of magnetic sheets, wherein the plurality of coupling portions each include: a posture holding portion adjacent to a gap defined between adjacent core backs; a first thin portion configured to couple one corner portion of the adjacent core backs and the posture holding portion; and a second thin portion configured to couple another corner portion of the adjacent core backs and the posture holding portion, and wherein, the posture holding portion projects toward a radially outer side with respect to the adjacent core backs.

Abstract: Provided is a rotating electric machine capable of downsizing a coil end. The rotating electric machine includes an armature core and a plurality of coils. The plurality of coils each include a plurality of turn portions. The plurality of turn portions each include an inner-layer-side turn portion and an outer-layer-side turn portion. The inner-layer-side turn portion includes a first inner-layer-side bent portion, a first inner-layer-side oblique portion, and an inner-layer-side shift portion which is twisted. The outer-layer-side turn portion includes a first outer-layer-side bent portion, a first outer-layer-side oblique portion, and an outer-layer-side shift portion. The outer-layer-side shift portion has the inner-layer-side shift portion arranged between the outer-layer-side shift portion and the armature core.

Abstract: To obtain a rotating electric machine capable of downsizing the rotating electric machine in an axial direction and in a radial direction. A first inner-peripheral-side terminal includes a first conductor-exposed portion and a second inner-peripheral-side terminal includes a second conductor-exposed portion opposed to the first conductor-exposed portion. An opposing portion being a portion, at which the first conductor-exposed portion and the second conductor-exposed portion are opposed to each other, extends in a radial direction, and at least a part of the opposing portion of the first conductor-exposed portion and the second conductor-exposed portion is arranged on an inner side in the radial direction compared to the first outer-peripheral-side terminal and the second outer-peripheral-side terminal.

Abstract: An annular stator core in which, out of slots arrayed in a circumferential direction and extending in a radial direction, q slots are formed per pole and per phase; and stator windings, for respective phases, attached to the stator core. For each stator winding, q*n unit coils obtained by winding wire conductors at regular intervals into concentric winding forms are used to obtain n coils in each of which the q unit coils wound in a same direction are connected so as to be shifted from each other in the circumferential direction, and the stator winding is composed of two coil groups each obtained by joining the n/2 coils together. The two coil groups are connected in parallel to each other between power feed portions and neutral points, and two coils that are connected to the power feed portions are disposed so as to share the slot.

Abstract: A laminated core manufacturing method according to the present invention is a manufacturing method for a laminated core including: a laminated body that is configured by laminating core strips that are made of a magnetic material, the laminated body including: a core back portion; and a tooth portion; and electrically insulating members that are disposed on two side portions of the tooth portion, wherein the laminated core manufacturing method includes a bonding step in which the insulating members are pressed onto each of the side surfaces of the tooth portion of the laminated body so as to integrate the laminated body and also so as to fix the insulating members to the laminated body, by means of at least one of an adhesive and a pressure-sensitive adhesive that is disposed between each of the side surfaces of the tooth portion and the insulating members.

Abstract: To provide a controller and a control method which can estimate a temperature of the temperature estimation with good accuracy without depending on detection information of other sensors other than the temperature sensor, even if the temperature sensor is attached to a position away from the temperature estimation point. A controller is provided with a sensor temperature detector that detects a sensor temperature based on an output signal of a temperature sensor attached to a temperature estimation object; and a temperature estimator that calculates an estimated temperature of the temperature estimation point, based on the current detection value of sensor temperature or the current correction value of sensor temperature, the detection value of sensor temperature before the step time or the correction value of sensor temperature before the step time, and a thermal time constant.

Abstract: An outer-circumferential side of a core-back portion of a stator iron core has a welding portion that is provided in such a way as to ride on two or more electromagnetic steel plates including electromagnetic steel plates situated at a stacking-direction end portion of the stator iron core; the welding portion is provided partly in the stacking-direction of the stator iron core.

Abstract: Provided is a rotor for a rotating electric machine, which enables suppression of a reduction in output of a rotating electric machine. The rotor for a rotating electric machine includes: a rotor core having winding-portion insertion holes and magnet insertion holes; rotor winding portions inserted into the winding-portion insertion holes; and rotor permanent magnets inserted into the magnet insertion holes, wherein each of the rotor winding portions includes: a non-magnet portion; and a rotor winding provided to the non-magnet portion, wherein each of the non-magnet portions is fixed to the rotor core, and wherein the rotor windings are fixed to the rotor core through intermediation of the non-magnet portions.

Abstract: A rotary electric machine stator core according to the present invention includes: a laminated core in which a plurality of teeth are arranged circumferentially so as to each protrude radially inward from an inner circumferential surface of an annular back yoke; and a plurality of rib members that each have a bolt passage portion, that are joined to an outer circumferential surface of the laminated core such that a bolt insertion direction of the bolt passage portion is oriented in an axial direction, and that are disposed so as to be spaced apart from each other in a circumferential direction.

Abstract: Provided is an excellent insulating rotating electric machine having a small axial size and a small number of components. In the rotating electric machine according to the present invention, radially outer-side terminals and radially inner-side terminals extend from slots while a circumferential bending direction is alternately changed for each group of n radially outer-side terminals or n radially inner-side terminals after the extension thereof from the slots. A first angle formed between at least one of an oblique-side portion of each of the n radially inner-side terminals, which are continuous in the circumferential direction of the stator core and are bent in the same circumferential bending direction, and an oblique-side portion of each of the n radially outer-side terminals, which are continuous in the circumferential direction and are bent the same circumferential bending direction, and an end surface of a stator core monotonously decreases in the circumferential bending direction.

Abstract: A laminated core manufacturing method according to the present invention is a manufacturing method for a laminated core including: a laminated body that is configured by laminating core strips that are made of a magnetic material, the laminated body including: a core back portion; and a tooth portion; and electrically insulating members that are disposed on two side portions of the tooth portion, wherein the laminated core manufacturing method includes a bonding step in which the insulating members are pressed onto each of the side surfaces of the tooth portion of the laminated body so as to integrate the laminated body and also so as to fix the insulating members to the laminated body, by means of at least one of an adhesive and a pressure-sensitive adhesive that is disposed between each of the side surfaces of the tooth portion and the insulating members.

Abstract: In the rotating electric machine, a first terminal and a second terminal extend from two of the slots and a third terminal extends from one of the slots, which is located between the two slots. The first terminal and the second terminal are connected to each other with use of a bus bar. The bus bar has: a first end portion to be connected to a distal end portion of the first terminal; a second end portion to be connected to a distal end portion of the second terminal; and an interconnecting portion configured to couple the first end portion and the second end portion to each other, which is arranged in the circumferential direction on the stator core side of the first end portion and the second end portion so as to pass on the slot side of the third terminal.

Abstract: This method includes: a coil assembly step of combining a plurality of coil units to form a coil basket; a core insertion step of inserting inner cores of in the radial direction to the coil basket; and a fixation member insertion step of inserting a fixation member to the outer circumference of the inner core. In the core insertion step, the radial-direction position of the coil basket is retained at a core insertion time position shifted outward in the radial direction relative to a normal position after armature completion, and the inner cores are inserted in the radial direction to the coil basket. After the core insertion step, the radial-direction positions of the coil basket and the inner cores are moved inward in the radial direction to the normal position after armature completion.

Abstract: To provide a rotary electric machine which is improved in cooling performance. The rotary electric machine includes a rotor; and a stator which, being disposed opposite the rotor, has a stator core having a plurality of slots therein and a stator winding wound in the plurality of slots, wherein the stator has a plurality of coil ends which are formed protruding from an axial end face of the stator core and between adjacent ones of which is provided a radial clearance passing through from the inner diameter side to the outer diameter side, and wherein the stator includes a bus bar which, being disposed on the inner diameter side of the plurality of coil ends so as to occlude the clearances between the plurality of coil ends, guides a refrigerant, which is supplied from the radial direction of the stator, to the plurality of coil ends.

Abstract: To obtain a rotating electric machine capable of downsizing the rotating electric machine in an axial direction and in a radial direction. A first inner-peripheral-side terminal includes a first conductor-exposed portion and a second inner-peripheral-side terminal includes a second conductor-exposed portion opposed to the first conductor-exposed portion. An opposing portion being a portion, at which the first conductor-exposed portion and the second conductor-exposed portion are opposed to each other, extends in a radial direction, and at least a part of the opposing portion of the first conductor-exposed portion and the second conductor-exposed portion is arranged on an inner side in the radial direction compared to the first outer-peripheral-side terminal and the second outer-peripheral-side terminal.

Abstract: Provided is a rotating electric machine capable of downsizing a coil end. The rotating electric machine includes an armature core and a plurality of coils. The plurality of coils each include a plurality of turn portions. The plurality of turn portions each include an inner-layer-side turn portion and an outer-layer-side turn portion. The inner-layer-side turn portion includes a first inner-layer-side bent portion, a first inner-layer-side oblique portion, and an inner-layer-side shift portion which is twisted. The outer-layer-side turn portion includes a first outer-layer-side bent portion, a first outer-layer-side oblique portion, and an outer-layer-side shift portion. The outer-layer-side shift portion has the inner-layer-side shift portion arranged between the outer-layer-side shift portion and the armature core.

Abstract: An annular stator core in which, out of slots arrayed in a circumferential direction and extending in a radial direction, q slots are formed per pole and per phase; and stator windings, for respective phases, attached to the stator core. For each stator winding, q*n unit coils obtained by winding wire conductors at regular intervals into concentric winding forms are used to obtain n coils in each of which the q unit coils wound in a same direction are connected so as to be shifted from each other in the circumferential direction, and the stator winding is composed of two coil groups each obtained by joining the n/2 coils together. The two coil groups are connected in parallel to each other between power feed portions and neutral points, and two coils that are connected to the power feed portions are disposed so as to share the slot.

Abstract: A rotating electrical machine can increase the strength of divided cores and, in addition, can achieve both a reduction in iron loss and a high rigidity of the divided cores. The stator of the rotating electrical machine includes a stator core having radially divided cores arranged in a ring, each divided core being a laminate of magnetic steel sheets. Each divided core has a swaged portion in which the laminated magnetic steel sheets are bonded by swaging. The swaged portion is disposed in a core back portion, which is in contact with core back portions of divided cores located on both sides of the divided core at a position whose distance from an outer periphery of the core back portion is within ? of a radial length of the core back portion.